A018014 Powers of cube root of 13 rounded up.

1, 3, 6, 13, 31, 72, 169, 398, 935, 2197, 5166, 12147, 28561, 67157, 157908, 371293, 873035, 2052796, 4826809, 11349444, 26686341, 62748517, 147542765, 346922421, 815730721, 1918055941, 4509991466, 10604499373, 24934727222, 58629889046, 137858491849

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..200

Mathematica

Ceiling[Surd[13, 3]^Range[0, 30]] (* Harvey P. Dale, Nov 06 2013 *)
Table[Ceiling[13^(n/3)], {n, 0, 40}] (* Vincenzo Librandi, Jan 09 2014 *)

Prog

(Magma) [Ceiling(13^(n/3)): n in [0..40]]; // Vincenzo Librandi, Jan 09 2014

Crossrefs

Cf. powers of cube root of k ceiling up: A017981 (k=2), A017984 (k=3), A017987 (k=4), A017990 (k=5), A017993 (k=6), A017996 (k=7), A018002 (k=9), A018005 (k=10), A018008 (k=11), A018011 (k=12), this sequence (k=13), A018017 (k=14), A018020 (k=15), A018023 (k=16), A018026 (k=17), A018029 (k=18), A018032 (k=19), A018035 (k=20), A018038 (k=21), A018041 (k=22), A018044 (k=23), A018047 (k=24).

Sequence in context: A130582 A126296 A293911 * A358937 A162483 A187780

Adjacent sequences: A018011 A018012 A018013 * A018015 A018016 A018017

Keyword

nonn

Author

N. J. A. Sloane

Extensions

More terms from Vincenzo Librandi, Jan 09 2014

Status

approved